[A83] Re: Motorola 68k vs. Zilog z80

To: assembly-83@lists.ticalc.org
Subject: [A83] Re: Motorola 68k vs. Zilog z80
From: Gavin Olson <gtolson@snet.net>
Date: Sun, 18 Nov 2001 16:38:24 -0500
In-Reply-To: <F23Dbh3DhqvX0XRix8I0000fc22@hotmail.com>
Reply-To: assembly-83@lists.ticalc.org

At 04:49 PM 11/18/2001 +0000, you wrote:

>Now I have "found" a rom from the Ti-89(which is 100
>times better then the Ti-83-), I wonder what the major differences between
>the processors are.

Well, 68K gives you 7 (or 8, i forget) registers for addressing and another 
7 (or 8) for data.  The registers can aslo be accessed by 8,16, or 32 byte 
chucks, so you don't have to combine registers for big numbers (like bc, 
de, and hl).  The instruction mnemonics are also longer than 3 letters 
(yeah, so that could be made for a Z80 assembler, but hey) The instructions 
are also a lot more numerous, fo doing special things really fast.  Anyway, 
if you want to write fo the 89, there is a C compiler (TIGCC) that works 
wonders.

References:

[A83] Motorola 68k vs. Zilog z80

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